As medicine and technology continue to evolve， the diagnosis rate of adult attention deficit hyperactivity disorder（ ADHD） has been rising year by year， and the attention is growing. Currently， the concept of smart healthcare is widely spread and applied in various fields of medical health. This paper focuses on the current development of smart medicine and the diagnostic challenges of adult ADHD， explores the prospects for the application of smart medical devices in adult ADHD， discusses the feasibility of smart medical devices to assist in the diagnosis of adult ADHD， and proposes ethical and safety issues that may be involved in the process of the research， as well as the possible risks and challenges.